A man is robbed while making a call in a phone booth. Staggering in the middle of the road from the beating by the thieves, he is then struck down by a car driven by a woman named Oom. Feeling sorry for him, Oom brings the man to her apartment and gives him shelter. The man, it turns out, has developed amnesia. Based the name on a pendant the man is wearing - his only possession - Oom names him Tan. A doctor's examination reveals that Tan is uninjured except that he can't remember anything about his life prior to being struck by Oom's car.